The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 21, 1983
Filed:
Sep. 18, 1981
Applicant:
Inventors:
Tamotsu Miyamori, Iwaki, JP;
Hisatsugu Kaji, Iwaki, JP;
Iwao Kameyama, Iwaki, JP;
Michio Takahashi, Tokyo, JP;
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
4234477 ; 264 292 ;
Abstract
The present invention relates to a method for preparing carbon fibers from a pitch by melt-spinning the pitch, infusibilizing the pitch fibers with a mixture of air and a gaseous oxidizing agent in an infusibilizing furnace divided into at least two chambers arranged in series under the condition of a velocity of the circulation gas in a specified range and then carbonizing the thus treated pitch fibers into carbon fibers.
Quick Actions:
Miyamori, Tamotsu. (1983). Method for preparing carbon fibers (U.S. Patent No. 4389387). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4389387
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile